A response layout
1. What is responsive web
2. Responsive web page must do a few things
| 1. layout, flow layout (+ floating default document stream) + Flexible layout grid layout + 2. Text and image size as the container size change 3. Media inquiries technologies (css3) Code complexity of the geometry of increase Complex page layout is not suitable response |
3. How to test responsive website
① using real equipment
| Benefits: authentic Disadvantages: high cost, a huge amount of testing tasks |
② use third-party simulation software testing
| Benefits: easy and fast Disadvantages: limited test results, pending further verification |
③ The test simulator comes chrome
| Benefits: Easy Disadvantages: test results are quite limited |
4. Preparation responsive layout (focus *******************************************************)
① phone adapter
| Viewport is provided, if the project to run at the mobile terminal, to set the viewport <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"> width = device-width setting device width equal to the width of the viewport initial-scale = 1.0, provided the initial width of the viewport can not be scaled 1.0 representatives maximum-scale = 1.0, the maximum setting the viewport scale 1.0 times the maximum 1 user-scalable = 0 allows the user to set whether the zoom viewport allowed 0 Viewport most succinct wording <meta name="viewport" content="width=device-width, initial-scale=1"> |
② all content / text / image use the relative size (as possible), the absolute value of little use
Flexible Fluid layout + ③ + layout media queries (grid layout) layout completion response
④ media queries
| Responsive CSS3 Media Query do the necessary technology Media: media, web browsing device Equipment: screen (pc / pad / phone) TV/print Depending on your browser pages equipment (size, orientation, hardware, resolution, etc.), have a choice, performed as part of css styles, ignore other css styles |
二.BootStrap
| 1. How to use the boot 2. Global css 3.组件+js插件 4.定制sass 5.boot项目 |
1.如何使用boot
| <link rel="stylesheet" href="bootstrap.css"/> |
2.全局css样式
| container 定宽容器，每种不同的分辨率下， 定义了写死的max-width 同时，有左右15px内边距，水平居中 container-fluid 变宽容器，根据不同分辨率的屏幕， 宽度永远是屏幕的100% boot支持4种屏幕 xl/lg/md/sm 不支持xs boot中1个rem是16px。 boot的css reset使用的是normalize.css方案 |
①按钮相关的class
| .btn 基本类 定义了行内块，字号，文本对齐，边框，过渡等 按钮颜色 .btn-danger 红色 .btn-success 绿色 .btn-warning 黄色 .btn-info 藏青 .btn-primary 蓝色 .btn-secondary 灰色 .btn-dark 深色 .btn-light 浅色 不同边框的按钮 . btn-outline-danger/warning/info...... 不同按钮大小 .btn-sm .btn-lg .btn-block . btn-link |
②图片相关
| .rounded 添加圆角 0.25rem .rounded-circle 圆形 .img-thumbnail 添加内边距和边框 .img-fluid 响应式图片，图片可以缩放， 但是最大不能超过原始大小 |
③文字相关的class
| .text-danger/warning/info.....文本颜色 .h1~.h6 文本字号和加粗 .text-uppercase/lowercase/capitalize 文本大小写，首字母大写 .text-left/right/center 文本对齐 .text-*-left/right/center *:sm/md/lg 媒体查询 .text-justify 两端对齐，注意，没有媒体查询 |
④列表相关
| ul .list-unstyled 去点，左内边距清0 .list-group 列表组 li .list-group-item 列表项 ，边框，首元素和尾元素的圆角 颜色 .list-group-item-danger/warning..... 激活项 .active 禁用项 .disabled |
⑤table相关的class
| .table 对table本身和table的后代布局 .table-bordered 为table本身和后代添加边框 .table-danger/warning/success...表格颜色 .table-hover 带悬停效果的表格 .table-striped 隔行变色 .table-responsive-* *：sm/md/lg/xl 响应式布局的表格，写在table的父元素上 |
3.辅助类
①边框
| .border-0 去掉边框 .border-top/right/bottom/left-0 去掉某一个方向的边框 基本类 .border 灰色实线边框 .border-top/right/bottom/left 单边的灰色实线边框 边框颜色 .border-danger/warning/success..... |
②浮动
| .float-left/right/none 响应式浮动 .float-*-left/right/none *:sm/md/lg/xl .clearfix 解决高度坍塌，写在父元素上 |
③显示
| .visible visibility:visible .invisible visibility:hidden; |
④背景颜色
| .bg-danger/warning/success.... |
⑤圆角
| .rounded/.rounded-0 .rounded-top/right/bottom/left 设置某个方向的两个圆角 |
⑥尺寸
| w-25/50/75/100 width:25%/50%/75/100% 其它宽度需要自己定义 h-25/50/75/100 同上 mw-100/mh-100 max-width:100%;max-height:100%; |
⑦内外边距
| m/mt/mr/mb/ml/mx/my-*-auto/0/1/2/3/4/5 外边距 0:0 1:0.25rem 2:0.5rem 3:1rem 4:1.5rem 5:3rem p/pt/pr/pb/pl/px/py-*-0/1/2/3/4/5 内边距 *：sm/md/lg/xl 响应式的内外边距 |